Circular Chart Recorder
– CR4” No Display
CR2010 series of circular chart recorders are available in 3 different sizes of the charts. The smallest being approximately 4” in chart diameter. When the space is limited or you need a really small chart recorder, this is a perfect fit.
These recorders are widely used in low temperature equipment, blood banks, incubators and many more places. They come for RTD Pt-100 inputs or 4-20mA process inputs.
Standard chart speed is 7 days for one revolution but other chart speed can also be made available. These recorder are microcontroller based. Crystal controlled chart drive ensures the excellent chart speed accuracy. Stepper motors for both pen and chart drive, ensures no lag and no backlash. Standard 138×138 mm DIN cutout with smallest depth makes it very convenient to use.
Transparent polycarbonate door makes the chart visible from distance. They come with universal power supply as a standard feature. Other power supply inputs are also available.
Features
- 4” Chart Width
- Single Analog Input channel
- Universal Power Supply 85-264 V AC, 47-63 Hz
- Other power supply inputs on request
- Battery Backup
- Direct Input standard Pt-100 sensor
- Process Input through 4-20mA
- 7-Day chart rotation
- Other chart rotations available on request
Specification
| Model No | CR2010 Series; 4″ Recorder |
| Product Code* | 1xx00 |
| Recording System | |
| Pens | |
| No. of Pens | 1 |
| Pen Marking | Continuous |
| Pen Response Time | < 5 Sec (Full Scale) |
| Pen Resolution | Stepper Motor Controlled, better than 0.1% FSD |
| Overshoot | None |
| Chart | |
| Chart Speed | 7 days/rev; 24Hr/Rev and 4H/Rev |
| Chart Calibrated Radius | 1.3″ (approx. 34mm) |
| Chart Ranges | Standard (Refer Table 2) / Customized (Please specify) |
| Display, Operator Panels, and Input | |
| Display Type | None |
| Status Indicator | LED |
| Panel Keys | Front panel KB consisting of 2 keys for programming and calibration |
| Analog Input | RTD PT-100 / 4-20 mA (External shunt resistance of 50 Ohm ±0.1%) |
| Sensor Type and Range | Refer to Table 1 |
| Scan Rate | Continuous, 1 reading per second |
| Protection | |
| RTD Input Impedance | > 20 MΩ |
| Volt Input | N/A |
| mA Input | 50Ω / 2.7Ω Shunt External |
| CMRR | > 100 dB @ 50, 60 Hz at 3 Samples per Second |
| NMRR | > 50 dB @ 50, 60 Hz at 3 Samples per Second |
| Maximum Common Mode Voltage | 5V AC |
| Isolation Channel – EARTH | 1.5KV 1 minute |
| Input Protection | 30V AC/DC max |
| Termination | Non-interchangeable, Removable Plugs |
| Environmental | |
| Temperature (Operation) | 5˚C to 45˚C |
| Temperature (Limiting) | 0˚C to 50˚C |
| Temperature (Storage) | -20˚C to 60˚C |
| Humidity (Operation) | 10% to 80% RH (Non-Condensing) |
| Humidity (Storage) | 5% to 90% RH (Non-Condensing) |
| Altitude | < 2000 meters |
| Power Requirement | |
| Supply Voltage (Mains Operated) | 85-264VAC 47-63Hz |
| Battery Backup | Yes |
| Power | 15 W Max with Maximum Configuration |
| Fuse Type | None |
| Battery Backup | |
| Battery | 12V 7Ah External Lead Acid battery |
| Battery Charger | Yes |
| Battery Reverse Polarity | Protected |
| Minimum Backup | 24 Hrs. |
| Relay Output | |
| Relay Output | None |
| Safety | |
| Safety | IEC 61010-1 |
| EMI-EMC | EN 61326-1 Class A |
| Pollution Degree | II |
| Installation Category | III |
| Vibration | 2g Peak (10 Hz-150Hz) |
| Shock | IEC61010-1 |
| IP Rating | IP30 (Door and Bezel only) |
| Overall Dimension | |
| Dimension L x W x D (mm) | 144x144x91 |
| Panel Cutout (mm) (L x W) | 138×138 |
| Bezel (mm) | 144×144 |
Table 1: Sensor Type, Range, Accuracy and Max Error Specification
| Input Type | Valid Input Range | Resolution Chart | Accuracy | Linearization Error (Max) |
|---|---|---|---|---|
| PT-100 (RTD) | -200 to +850˚C | 2% | +/- 0.5% FSD | ±0.7˚C Max |
| mA | 4-20 mA | 2% | +/- 0.5% FSD | ± 0.1% Max |
Table 2: Standard Available Chart Ranges
| Sr. No. | Range** | Speed | Size | Part No. | Part Description |
|---|---|---|---|---|---|
| 01 | -10 to +34 | 7D | 4” | 303006 | W4-1034 |
| 02 | +34 to -10 | 7D | 4” | 303001 | W434-10 |
| 03 | +34 to -50 | 7D | 4” | 303002 | W434-50 |
| 04 | -50 to +34 | 7D | 4” | 303004 | W4-50+34 |
| 05 | -6 to -90 | 7D | 4” | 303003 | W4-6-90 |
| 06 | -8 to -50 | 7D | 4” | 303005 | W4-8-50 |
| 09 | -40 to -124 | 7D | 4” | 303009 | W4-40-124 |
| 20 | Other Please Specify | ||||
** First value in the chart is at the center of the Chart.
Specification listed are for each of the modules that can be fitted. Refer to the order code for the exact modules fitted in your system. Specifications for the modules that are not fitted, will not be applicable. Specifications are subject to change without notice.
Accessories
1. Chart Pack of 100
Standard Available Chart Ranges and Their Part No.:
| Sr. No. | Range** | Speed | Size | Part No. | Part Description |
| 1 | -10 to +34 | 7Days/rev | 4” | 303006 | W4-1032 |
| 2 | +32 to -10 | 7Days/rev | 4” | 303001 | W432-10 |
| 3 | +32 to -50 | 7Days/rev | 4” | 303002 | W432-50 |
| 4 | -50 to +34 | 7Days/rev | 4” | 303004 | W4-50+34 |
| 5 | -6 to -90 | 7Days/rev | 4” | 303003 | W4-6-90 |
| 6 | -8 to -50 | 7Days/rev | 4” | 303005 | W4-8-50 |
| 9 | -40 to -124 | 7Days/rev | 4” | 303009 | W4-40-124 |
| 20 | Other Please Specify |
** First value in the chart is at the center of the Chart.
# PS: Pressure Sensitive Chart
2. Panel Mount Clamps: (Available in Pair only)
Part No.: 210046
3. Pen: Available in Pack of 5 nos.
Part No.: 217006
Downloads
FAQs
Circular Chart Recorder
– CR4” No Display
Yes, very precise with smooth pen movement (<0.5% full scale).
Works with standard RTD Pt-100 or 4-20 mA signals.
Yes, the 12V battery backup runs up to 24 hours, so your data is never lost even during power cuts.
Perfect for blood banks, incubators, cold rooms, or any low-temperature equipment. Its compact 138×138 mm size makes installation easy even in small spaces.
Yes, the clear polycarbonate door lets you view the chart from a distance. Setup is simple, monitoring is quick, and you can always trust the data for critical processes.
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